Bernie Sanders is still leading a revolution. “Not only can I lead it, I think I am the person to lead it,” Sanders said in an interview at a plumbers and pipefitters union hall in Las Vegas, when asked if he could helm a revolution when so many of his presidential rivals agree with him. The campaign is restructuring its staff in key early voting states as the 78-year-old Sanders faces crosscurrents that weren’t in play four years ago.